chore: remove --legacy-peer-deps flag and downgrade dependencies for …

[grvv]

remove --legacy-peer-deps flag and downgrade dependencies

[coolsoftwaretyler]

Taking a look now, thank you!

[coolsoftwaretyler]

Love it, confirmed all scripts work (except for the FIrefox E2E tests, which have been broken for a while, not a blocker).

[grvdisco]

More details from conversations on other threads:

In this PR, we opted to downgrade eslint-loader and a few other dependencies in order to maintain compatibility with Webpack 3 for the time being, instead of proceeding with a full Webpack upgrade. This keeps the scope of this PR more focused and allows us to address the bundler upgrade at a later time.

Key changes:

• Downgraded eslint-loader and related dependencies.
• Removed the --legacy-peer-deps flag from the bootstrap script, as everything now installs correctly without it.
• Ensured that all scripts (bootstrap, build, start) are working as expected, with some warnings still present.
• All test cases are passing.

This approach helps us move forward with minimal disruption, while we plan for the Webpack upgrade in a separate PR.